CP BIOLOGY
DNA, RNA , MEIOSIS REVIEW
Name: _____________________
__ period
1.
Diagram and label a model of DNA. Be sure to include all the
parts that make up a single nucleotide.
2.
Describe in detail how DNA replicates itself.
3.
Differentiate between DNA and RNA.
Difference
Bases
Sugars
Appearance
DNA
RNA
CP BIOLOGY, DNA, RNA, MEIOSIS REVIEW, page 2
4.
Compare DNA and RNA by checking the appropriate box:
DNA
mRNA
tRNA
rRNA
Deoxyribonucleic acid
Ribonucleic acid
Ribose present
Deoxyribose present
Phosphate present
Adenine present
Thymine present
Uracil present
Guanine present
Cytosine present
Made of nucleotides
Double stranded
Single stranded
Remains in the nucleus
Contains a chemical message or
code
5.
List the main function for each of the following types of RNA:
a. mRNA
b. rRNA
c. tRNA
CP BIOLOGY, DNA, RNA, MEIOSIS REVIEW, page 3
6.
Summarize the process (steps) of transcription.
7.
Summarize the process (steps) of translation.
8.
Summarize the protein synthesis process, starting the DNA.
DNA
TAC
mRNA
tRNA
Amino
acid
AAA
CCA
TTG
CGA
AAT
9. Contrast gene and chromosome mutations.
AGA
TGA
ATT
CP BIOLOGY, DNA, RNA, MEIOSIS REVIEW, page 4
10. Explain why some changes in DNA structure are inherited and
some are not.
11. Identify which type of mutation has occurred in the original DNA
sequence. Underline all the mutated codons.
DNA:
TAC TTA CCG TCA ATT
a.
TAC TCT ACC GTC AAT T
__________________________
b.
TAC TTA CGT CAA TT
__________________________
c.
TAC TTA CCG ACA ATT
__________________________
12. Diagram the phases of meiosis in an animal cell with 4
chromosomes. Explain what happens in each phase.
Meiosis I
CP BIOLOGY, DNA, RNA, MEIOSIS REVIEW, page 5
12. Meiosis II
13. How do the results of meiosis differ in female organisms from
male organisms?
14. Differentiate between haploid and diploid cells. Using a human
cell, explain how the number in each are different.
CP BIOLOGY, DNA, RNA, MEIOSIS REVIEW, page 6
15. Compare mitosis to meiosis:
Mitosis
Kind of cell used
Kind of cell made
(Diploid or Haploid)
# of cells made
# of chromosomes in
daughter cell
compared to original
cell
Number of cycles
Differences in
Interphase
Meiosis
I
II
Differences in
Prophase
I
II
Differences in
Metaphase
I
II
Differences in
Anaphase
I
II
Differences in
Telophase
I
II